limit greet box in the most backendy way possible

webui.py

@@ -67,6 +67,11 @@ def debounce():
     time.sleep(0.5)
     return
 
+def greet_limit_max_lines(greet):
+    if len(greet.split('\n')) > 2:
+        return gr.Textbox(value='\n'.join(greet.split('\n')[0:2]))
+    return gr.Textbox()
+
 def overlay_image(image_path, toggle_greet, greet):
     image = ImageDraw.Draw(Image.open(image_path), "RGBA")
     HEIGHT, TEXT_PADDING, TEXTBOX_HEIGHT  = 100, 32, 56
@@ -144,8 +149,6 @@ with shared.gradio_root:
             greet = gr.Textbox(value=EXAMPLE_GREETINGS[0], placeholder="", interactive=True, container=False, lines=2, max_lines=2, show_label=False)
             greet_active = gr.Textbox(value=EXAMPLE_GREETINGS[0], visible=False, container=False, show_label=False)
             greet_examples = gr.Examples(elem_id="greet-examples", examples=EXAMPLE_GREETINGS, inputs=[greet])
-
-
     generated_image = gr.Image(visible=False, type='pil', label="Erstelle Weihnachtskarte...", elem_classes="generated-image", width=1280,
                                value=INIT_IMAGE_PATH, interactive=False, show_share_button=False, show_download_button=False)
     generated_image_overlayed = gr.Image(label="Weihnachtskarte", type='pil', elem_classes="generated-image", width=1280,
@@ -157,6 +160,7 @@ with shared.gradio_root:
                 .then(fn=make_overlay, inputs=[generated_image_path, toggle_greet, greet], outputs=[generated_image_overlayed, greet_active], show_progress=False, queue=False)
     greet.change(fn=debounce, queue=False, show_progress=False)\
          .then(fn=make_overlay, inputs=[generated_image_path, toggle_greet, greet], outputs=[generated_image_overlayed, greet_active], queue=False, show_progress=False)
+    greet.change(fn=greet_limit_max_lines, inputs=[greet], outputs=[greet], queue=False, show_progress=False)         
     greet_active.change(fn=verify_latest_overlay, inputs=[generated_image_path, toggle_greet, greet, greet_active], outputs=[generated_image_overlayed, greet_active], queue=False,  show_progress=False)
     run_button.click(fn=prepare_generate, outputs=[generated_image, generated_image_overlayed, run_button], queue=False)\
               .then(fn=generate, inputs=[prompt, style_selection], outputs=[progress_html, generated_image, generated_image_path], queue=True)\